Edit: New Question. I've now got the API master test kit on order but will go the the big pet shop for TSS as they have it in so it'll be quicker. Should I get a test stip pack for now to test first? I'm just thinking if levels are too high I could do another big water change today then add TSS tomorrow once it's 24hr after dechlorinator (now knowing I shouldn't water change for 2 wks). Or should I just add the TSS regardless as I did a 20% change yesterday and wait for test kit to arrive? Hi, My other half and I decided to set up an aquarium on the spur of the moment. We now know we've made tons of Rookie mistakes (which of course were coupled with some bad lfs advice) and are now trying to do what's best from here. We have a 68L tank (18g) tropical set up. No issues with our equipment that is all present and set up correctly. Once we were set up we were advised to do a fish-in cycle (which meant nothing at the time) and we took what we were told was 25% of our final stock levels home and acclimatised our new fishy friends to their new home. Then I started researching, read a lot of forums including this one and learnt that a) I should have researched before even setting foot in the lfs. b) we should have done a fishless cycle. We've had the fish in since Thursday afternoon and we're already clearing a slight bacterial bloom. Our fish are: 2 Peppered Cories 4 Zebra Danios 4 Neon Tetras 4 Platies I'm currently feeding the bare minimum that they'll eat to reduce waste levels and doing a 20% water change every 2/3 days to help keep ammonia levels down (that started today but I'm only going to partial hoover of the substrate once a week so as not to remove too much good bacteria). On to help (questions) a) We're yet to get a test kit (I know, I know) what would you recommend? b) What do you think of our stock level? Is it really only 25%? Could we add a few more later? (2 more cories, 2 more zebra, 2/4 more tetra and 2 guppies). c) Is there any more advice you can give to help stop our poor fishes suffering while the tank cycles? Thanks in advance!